kodlarım;
index.php
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title>jQuery and PHP</title>
<style type="text/css">
</style>
<script type="text/javascript" src="jquery-1.8.3.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#submit").click(function(){
var veri = $("form").serialize();
jQuery.ajax({
type:"POST",
url:"kayit.php",
data:veri,
success:function(cvp){
if(cvp=="eklendi"){
alert("Kullanıcı veritabanına eklendi");
}else if(cvp=="eklenemedi"){
alert("HATA! kullanıcı veritabanına eklenemedi");
}
}
});
});
});
function Ekle(hangisi){
var username = $("#username").val();
var password = $("#password").val();
var email = $("#email").val();
var veriler = "username="+username+"&password="+password+"&email="+email+"&hangisi="+hangisi;
$.ajax({
type:"POST",
url:"kayit.php",
data:veriler,
success:function(msg){
if(msg=="username_kucuk"){
$(".username").html("Kullanıcı Adı 6 karakterden kısa olamaz.");
$("#submit").attr("disabled",true);
}else if(msg=="username_okey"){
$(".username").html("Kullanıcı adı geçerli");
$("#submit").attr("disabled",false);
}else if(msg=="gecersiz_email"){
$(".email").html("Geçersiz e-mail adresi");
$("#submit").attr("disabled",true);
}else if(msg=="gecerli_email"){
$(".email").html("Email adresi standartlara uygun.");
$("#submit").attr("disabled",false);
}else if(msg=="password_kisa"){
$(".password").html("Password 6 karakterden kısa olamaz");
$("#submit").attr("disabled",true);
}else if(msg=="password_okey"){
$(".password").html("Parola standartlara uygun");
$("#submit").attr("disabled",false);
}
}
});
}
</script>
</head>
<body>
<table cellpadding="5" cellspacing="5">
<form action="kayit.php" method="post" onsubmit="return false;">
<tr>
<td>Username</td>
<td>:</td>
<td><input type="text" name="username" id="username" onkeyup="Ekle('username');"/></td>
<td class="username"></td>
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input type="text" name="password" id="password" onkeyup="Ekle('password');" /></td>
<td class="password"></td>
</tr>
<tr>
<td>Email</td>
<td>:</td>
<td><input type="text" name="email" id="email" onkeyup="Ekle('email');" /></td>
<td class="email"></td>
</tr>
<tr>
<td colspan="3"><input type="submit" value="Ekle" id="submit"/></td>
</tr>
<tr>
<td colspan="3" class="sonuc"></td>
</tr>
</form>
</table>
</body>
</html>kayit.php<?php
include "config.php";
$username = $_POST["username"];
$password = $_POST["password"];
$email = $_POST["email"];
$hangisi = $_POST["hangisi"];
if($hangisi=="username"){
if(strlen($username)<6){
echo "username_kucuk";
}else{
echo "username_okey";
}
}else if($hangisi=="password"){
if(strlen($password)<6){
echo "password_kisa";
}else{
echo "password_okey";
}
}else if($hangisi=="email"){
if(!filter_var($email,FILTER_VALIDATE_EMAIL)){
echo "gecersiz_email";
}else{
echo "gecerli_email";
}
}else{
$ekle = mysql_query("insert into uyeler (username,password,email) values ('$username','$password','$email')");
if($ekle){
echo "eklendi";
}else{
echo "eklenemedi";
}
}
?> 
